CN114357646B - Optimal compression and expansion depth matching method for all working conditions of turbocharged engine - Google Patents
Optimal compression and expansion depth matching method for all working conditions of turbocharged engine Download PDFInfo
- Publication number
- CN114357646B CN114357646B CN202111655164.4A CN202111655164A CN114357646B CN 114357646 B CN114357646 B CN 114357646B CN 202111655164 A CN202111655164 A CN 202111655164A CN 114357646 B CN114357646 B CN 114357646B
- Authority
- CN
- China
- Prior art keywords
- engine
- effective
- rotating speed
- optimal
- compression ratio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/08—Thermal analysis or thermal optimisation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Evolutionary Computation (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Supercharger (AREA)
Abstract
The invention belongs to a determination method, and particularly relates to a full-working-condition optimal compression and expansion depth matching method for a turbocharged engine. It includes: the combined scheme of the effective compression ratio and the effective expansion ratio on the line of the optimal combined scheme is drawn, so that the energy distribution proportion of the thermal cycle inside and outside the cylinder is optimal under the working condition of corresponding rotating speed of the engine, and the effects of the thermal power conversion of the thermal cycle inside the cylinder and the pressurization of the thermal cycle outside the cylinder are simultaneously higher, thereby enabling the engine to achieve the highest indicated thermal efficiency and the effective power under the corresponding rotating speed. The invention has the following remarkable effects: the method comprises the following steps of (1) optimizing the energy distribution proportion of the thermal cycle inside and outside a cylinder, (2) enabling an engine to stably run, fully utilizing energy due to the optimal distribution strategy of combustion heating amount, and (3) enabling the engine to achieve the highest indicated thermal efficiency and the highest indicated effective power at the corresponding rotating speed.
Description
Technical Field
The invention belongs to a determination method, and particularly relates to a full-working-condition optimal compression and expansion depth matching method for a turbocharged engine.
Background
The use of the turbocharger can enhance the power output and the heat-power conversion effect of the engine, and thus the turbocharger is generally applied to high-intensity and high-efficiency engines. However, in practical applications, two difficulties are prevalent: one is that turbocharger's rotational speed service condition scope is narrow, engine speed is low excessively, then exhaust energy is low excessively, the energy that gives the turbine is less than the required energy of compressor, this state is called "exhaust energy loss", turbocharger pivot constantly slows down or even can't start this moment, compressor pressure boost effect is very weak, the unable steady operation of engine, and engine speed is too high, then exhaust energy is too high, the energy that gives the turbine is higher than the required energy of compressor, this state is called "exhaust energy surplus", turbocharger pivot constantly accelerates, compressor pressure boost ratio constantly promotes, the unable steady operation of engine also, the latter can use the waste gas bypass valve to reduce exhaust energy admittedly, but can lead to the waste of burning heating volume. The second difficulty is the energy distribution strategy problem of the in-cylinder and out-cylinder thermodynamic cycles, under a certain combustion heating amount condition, the energy distributed by the in-cylinder thermodynamic cycles is too low, the indicating thermal efficiency is reduced, the supercharging effect of the out-cylinder thermodynamic cycles may be improved, but the exhaust energy surplus may be caused, while the energy distributed by the in-cylinder thermodynamic cycles is too high, the indicating thermal efficiency is higher, but the supercharging effect of the out-cylinder thermodynamic cycles may be reduced, or even the exhaust energy loss may occur.
Because the effective compression ratio and the effective expansion ratio can adjust the energy distribution proportion of the thermodynamic cycle inside and outside the cylinder, a set of combination scheme of the optimal effective compression ratio and the optimal effective expansion ratio is urgently needed to be determined under the working condition of full rotating speed, the combined scheme can ensure that the energy distribution proportion of the thermodynamic cycle inside and outside the cylinder is optimal simultaneously under the condition that the power of a turbine and a compressor is balanced, namely the stable operation of an engine is ensured, the combustion heating quantity is fully utilized, the thermal power conversion of the thermodynamic cycle inside the cylinder and the supercharging effect of the thermodynamic cycle outside the cylinder are both higher, and therefore the engine can reach the highest indicated thermal efficiency and the highest effective power under the working condition of corresponding rotating speed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for matching the optimal compression and expansion depths of the full working condition of a turbocharged engine.
The invention is realized by the following steps: the optimal compression and expansion depth matching method for the full-working condition of the turbocharged engine comprises the following steps of:
the combined scheme of the effective compression ratio and the effective expansion ratio on the line of the optimal combined scheme is drawn, so that the energy distribution proportion of the thermal cycle inside and outside the cylinder is optimal under the working condition of corresponding rotating speed of the engine, and the effects of the thermal power conversion of the thermal cycle inside the cylinder and the pressurization of the thermal cycle outside the cylinder are simultaneously higher, thereby enabling the engine to achieve the highest indicated thermal efficiency and the effective power under the corresponding rotating speed.
The method for matching the optimal compression and expansion depths of the turbocharged engine under the full working condition is as follows,
step 1: determining objects and parameters;
and 2, step: acquiring initial experimental data;
and 3, step 3: drawing;
and 4, step 4: drawing a Map of the preferred scheme;
and 5: an optimal combination solution line is determined.
The method for matching the optimal compression and expansion depths in the full working condition of the turbocharged engine is as described above, wherein the step 1 comprises,
according to the actual needs to determine the type and model of the engine with optimized parameters, the engine with the same type and model is selected as an experimental object, GT-Power performance simulation software is selected as an experimental platform, the engine speed is the engine nominal speed range, and in order to obtain the engine performance parameters with different speeds, 300rpm is taken as the minimum adjustment interval when the speed is adjusted each time.
The method for matching the optimal compression and expansion depths in the full working condition of the turbocharged engine is as described above, wherein the step 2 comprises,
the variable timing technology of simulating the actual engine by the intake and exhaust phase translation is utilized to realize the variable of the effective compression ratio and the effective expansion ratio, the number of the research values of the effective compression ratio and the number of the research values of the effective expansion ratio are determined according to the externally specified effective compression ratio variation range and effective expansion ratio variation range, the externally specified effective compression ratio minimum variation interval and effective expansion ratio minimum variation interval,
under each working condition of researching the rotating speed, carrying out simulation calculation on each selected effective compression ratio and effective expansion ratio combination scheme to respectively obtain the effective power and the indicated thermal efficiency of the engine and the rotating speed stable state of the rotating shaft of the turbocharger, judging according to the rotating speed stable state of the rotating shaft of the turbocharger, and recording as an exhaust energy surplus state if the rotating speed is continuously increased; if the rotating speed is kept stable quickly, recording as an exhaust energy balance state; if the rotating speed is continuously reduced, the state of exhaust energy loss is recorded.
The best compression and expansion depth matching method for the full-working condition of the turbocharged engine is described, wherein the step 2 comprises the steps of,
the externally specified effective compression ratio variation range is 9.2 to 14.3, and the effective compression ratio variation minimum range is 0.6375; the externally specified effective expansion ratio ranges from 12.0 to 13.9 with a minimum range of 0.38.
The best compression and expansion depth matching method for the full-working condition of the turbocharged engine is described, wherein the step 3 comprises the steps of,
and drawing the data under each rotating speed working condition into a bubble diagram, wherein the abscissa is an effective compression ratio, the ordinate is an effective expansion ratio, and the size of the bubble is effective power, so that an exhaust energy balance area in which the engine can stably operate and an exhaust energy surplus and exhaust energy loss area in which the engine cannot stably operate are distinguished.
The best compression and expansion depth matching method for the full-working condition of the turbocharged engine is described, wherein the step 4 comprises the steps of,
and extracting the outer edge line of the exhaust energy balance area at each research rotating speed according to the size and the range of the exhaust energy balance area at each research rotating speed and drawing the outer edge line into a graph.
The best compression and expansion depth matching method for the full-working condition of the turbocharged engine is described, wherein the step 5 comprises the steps of,
and connecting the curve vertexes under various rotating speed working conditions in the Map of the optimal scheme, wherein the connecting line is an optimal combination scheme line, and the data is also the output of the application.
The invention has the remarkable effects that: the combined scheme of the effective compression ratio and the effective expansion ratio on the optimal combined scheme line drawn by the invention can ensure that the energy distribution proportion of the thermal cycle inside and outside the cylinder of the engine is optimal under the working condition of corresponding rotating speed, (2) the exhaust energy can ensure the power balance of a turbine and a gas compressor and the stable operation of the engine, and the energy is fully utilized due to the optimal distribution strategy of the combustion heating amount, and (3) the effects of the thermal cycle heat power conversion inside the cylinder and the thermal cycle supercharging outside the cylinder can simultaneously reach higher levels, so that the engine reaches the highest indicated thermal efficiency and the effective power under the corresponding rotating speed.
Drawings
FIGS. 1 (a) - (g) show the bubble diagrams of the engines at 1300rpm to 3100rpm, respectively, with the interval of 300rpm, and the combined effect of the effective compression ratio and expansion ratio on the thermodynamic cycle energy distribution inside and outside the cylinder at each rotation speed.
FIG. 2 is a Map of the preferred embodiment of effective compression ratio versus expansion ratio and the optimal combination scheme line.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention.
A full-condition optimal compression and expansion depth matching method for a turbocharged engine comprises the following steps:
step 1: determining objects and parameters
According to the actual needs to determine the type and model of the engine with optimized parameters, the engine with the same type and model is selected as an experimental object, GT-Power performance simulation software is selected as an experimental platform, the engine speed is the engine nominal speed range, and in order to obtain the engine performance parameters with different speeds, 300rpm is taken as the minimum adjustment interval when the speed is adjusted each time.
And 2, step: obtaining initial experimental data
The variable timing technology of the actual engine is simulated by utilizing the phase translation of the intake and the exhaust, so that the variable of the effective compression ratio and the effective expansion ratio is realized. And determining the number of the research values of the effective compression ratio and the number of the research values of the effective expansion ratio according to the change range of the effective compression ratio and the change range of the effective expansion ratio which are externally specified and the minimum change interval of the effective compression ratio and the minimum change interval of the effective expansion ratio which are externally specified.
The externally specified effective compression ratio variation range is generally 9.2 to 14.3, and the effective compression ratio variation minimum range is 0.6375; the externally specified effective expansion ratio typically ranges from 12.0 to 13.9 with a minimum range of 0.38.
And under each working condition of the research rotating speed, carrying out simulation calculation on the combination scheme of each selected effective compression ratio and effective expansion ratio to respectively obtain the effective power and the indicated thermal efficiency of the engine and the rotating speed stable state of the rotating shaft of the turbocharger. Judging according to the stable rotating speed state of the rotating shaft of the turbocharger, and recording as an exhaust energy surplus state if the rotating speed is continuously increased; if the rotating speed is kept stable quickly, recording as an exhaust energy balance state; if the rotating speed is continuously reduced, the state of exhaust energy loss is recorded.
And step 3: drawing
And drawing the data under each rotating speed working condition into a bubble diagram, wherein the abscissa is an effective compression ratio, the ordinate is an effective expansion ratio, and the size of the bubble is effective power, so that an exhaust energy balance area in which the engine can stably operate and an exhaust energy surplus and exhaust energy loss area in which the engine cannot stably operate are distinguished.
And 4, step 4: map drawing of preferred protocols
And extracting the outer edge line of the exhaust energy balance area at each research rotating speed according to the size and the range of the exhaust energy balance area at each research rotating speed and drawing the outer edge line into a graph. If the data in the graph is not complete, supplementary experiments can be performed according to the situation.
And 5: determining an optimal combination scenario line
And connecting the curve vertexes under various rotating speed working conditions in the Map of the optimal scheme, wherein the connecting line is an optimal combination scheme line, and the data is also the output of the application. The curve can be applied to engines of the same type and the same model in an experiment.
A practical example is given below.
Step 1: determining objects and parameters
In the embodiment, GT-Power performance simulation software is selected as an experimental platform, the experimental model is selected as a four-cylinder 1.1L two-stroke diesel engine, and a proper turbocharger model is selected for matching. The study speed range was determined to be 1300rpm to 3100rpm, with intervals of every 300 rpm.
Step 2: obtaining initial experimental data
The specified effective compression ratio variation range is 9.2 to 14.3, the effective compression ratio variation minimum range is 0.6375 the specified effective expansion ratio variation range is generally 12.0 to 13.9, and the effective expansion ratio variation minimum range is 0.38. Therefore, the number of the effective compression ratio study values is 8, the number of the effective expansion ratio study values is 5, and the total effective data is 40.
Step 3 is entered after the relevant data is acquired.
And 3, step 3: drawing
Plotting the above data for each speed condition into bubble chart as shown in the attached FIGS. 1 (a) to (g)
And 4, step 4: map drawing of preferred protocols
According to the chart of the step 3, a Map of the preferred embodiment is drawn, as shown in the attached FIG. 2.
And 5: determining an optimal combination scenario line
And connecting the curve vertexes under various rotating speed working conditions in the Map of the optimal scheme to obtain an optimal combination scheme line, wherein the optimal scheme line can be used for a four-cylinder 1.1L two-stroke diesel engine.
The combined scheme of the effective compression ratio and the effective expansion ratio on the line of the optimal combined scheme drawn by the invention can ensure that the energy distribution proportion of the thermal cycle inside and outside the cylinder reaches the best under the working condition of the corresponding rotating speed of the engine, the exhaust energy of the engine not only can ensure the power balance of the turbine and the compressor, but also can stably run the engine, and the energy is fully utilized due to the optimal distribution strategy of the combustion heating quantity, so that the effects of thermal power cycle thermal power conversion inside the cylinder and thermal power cycle pressurization outside the cylinder can simultaneously reach higher levels, and the engine can reach the highest indicated thermal efficiency and the effective power under the corresponding rotating speed.
The above embodiment is only an application scenario of the present invention, and the present invention is not limited to the above embodiment, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be regarded as equivalent replacements within the protection scope of the present invention.
Claims (1)
1. A method for matching optimal compression and expansion depths under all working conditions of a turbocharged engine is characterized by comprising the following steps:
the combined scheme of the effective compression ratio and the effective expansion ratio on the line of the optimal combined scheme is drawn, so that the energy distribution proportion of the thermal cycle inside and outside the cylinder is optimal under the working condition of the corresponding rotating speed of the engine, and the effects of thermal power conversion of the thermal cycle inside the cylinder and pressurization of the thermal cycle outside the cylinder are simultaneously higher, so that the highest indicated thermal efficiency and the effective power of the engine under the corresponding rotating speed are achieved;
comprises the following steps of (a) preparing a solution,
step 1: determining objects and parameters; the step 1 comprises the following steps of,
determining the type and model of an engine with optimized parameters according to the actual requirement, selecting the engine with the same type and model as an experimental object, selecting GT-Power performance simulation software as an experimental platform, wherein the engine speed is the nominal engine speed range, and taking 300rpm as the minimum adjustment interval when adjusting the engine speed each time in order to obtain the engine performance parameters with different rotating speeds;
and 2, step: acquiring initial experimental data; the step 2 comprises that,
the variable timing technology of simulating the actual engine by the phase translation of the intake and the exhaust realizes the variable of the effective compression ratio and the effective expansion ratio, the number of the research values of the effective compression ratio and the number of the research values of the effective expansion ratio are determined according to the change range of the effective compression ratio and the change range of the effective expansion ratio which are designated by the outside and the minimum change interval of the effective compression ratio and the minimum change interval of the effective expansion ratio which are designated by the outside,
under each working condition of researching the rotating speed, carrying out simulation calculation on each selected effective compression ratio and effective expansion ratio combination scheme to respectively obtain the effective power and the indicated thermal efficiency of the engine and the rotating speed stable state of the rotating shaft of the turbocharger, judging according to the rotating speed stable state of the rotating shaft of the turbocharger, and recording as an exhaust energy surplus state if the rotating speed is continuously increased; if the rotating speed is kept stable quickly, recording as an exhaust energy balance state; if the rotating speed is continuously reduced, recording as an exhaust energy loss state;
the externally specified effective compression ratio variation range is 9.2 to 14.3, and the effective compression ratio variation minimum range is 0.6375; the externally specified effective expansion ratio ranges from 12.0 to 13.9 with a minimum effective expansion ratio variation range of 0.38;
and step 3: drawing; the step 3 comprises the steps of,
drawing the data under each rotating speed working condition into a bubble diagram, wherein the abscissa is an effective compression ratio, the ordinate is an effective expansion ratio, and the size of the bubble is effective power, so that an exhaust energy balance area in which the engine can stably operate and an exhaust energy surplus and exhaust energy loss area in which the engine cannot stably operate are distinguished;
and 4, step 4: drawing a Map of the preferred scheme; the step 4 comprises that,
extracting outer edge lines of the exhaust energy balance areas at all the research rotating speeds according to the size and the range of the exhaust energy balance areas at all the research rotating speeds, and drawing the outer edge lines into a graph;
and 5: determining an optimal combination scheme line; the step 5 comprises the steps of,
and (4) connecting the peaks of the curves in the Map of the optimal scheme drawn in the step (4) under the working conditions of all rotating speeds, wherein the connecting line is an optimal combination scheme line which is the output of the method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111655164.4A CN114357646B (en) | 2021-12-31 | 2021-12-31 | Optimal compression and expansion depth matching method for all working conditions of turbocharged engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111655164.4A CN114357646B (en) | 2021-12-31 | 2021-12-31 | Optimal compression and expansion depth matching method for all working conditions of turbocharged engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114357646A CN114357646A (en) | 2022-04-15 |
| CN114357646B true CN114357646B (en) | 2023-02-17 |
Family
ID=81102765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111655164.4A Active CN114357646B (en) | 2021-12-31 | 2021-12-31 | Optimal compression and expansion depth matching method for all working conditions of turbocharged engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114357646B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532910A (en) * | 2009-04-16 | 2009-09-16 | 北京理工大学 | Acceleration performance evaluation test method and test apparatus of turbo-charger |
| JP2014077412A (en) * | 2012-10-11 | 2014-05-01 | Hino Motors Ltd | Control unit for turbocharger and control method therefor |
| CN108019275A (en) * | 2016-12-21 | 2018-05-11 | 赵志渊 | A kind of computational methods of gas internal-combustion engine generated output and parameter of discharging fume based on complex working condition |
| CN112364453A (en) * | 2020-11-12 | 2021-02-12 | 北京理工大学重庆创新中心 | Engine modeling and analyzing method and system |
| CN113741211A (en) * | 2021-05-27 | 2021-12-03 | 北京交通大学 | Optimization method for integrated optimization matching of EGR system and supercharging system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8931272B2 (en) * | 2010-10-29 | 2015-01-13 | Ford Global Technologies, Llc | Method and system for limiting output of a boosted engine |
| CN110555217B (en) * | 2018-05-31 | 2022-12-13 | 中国人民解放军陆军军事交通学院 | Centrifugal compressor variable altitude all-condition through flow design optimization method |
-
2021
- 2021-12-31 CN CN202111655164.4A patent/CN114357646B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532910A (en) * | 2009-04-16 | 2009-09-16 | 北京理工大学 | Acceleration performance evaluation test method and test apparatus of turbo-charger |
| JP2014077412A (en) * | 2012-10-11 | 2014-05-01 | Hino Motors Ltd | Control unit for turbocharger and control method therefor |
| CN108019275A (en) * | 2016-12-21 | 2018-05-11 | 赵志渊 | A kind of computational methods of gas internal-combustion engine generated output and parameter of discharging fume based on complex working condition |
| CN112364453A (en) * | 2020-11-12 | 2021-02-12 | 北京理工大学重庆创新中心 | Engine modeling and analyzing method and system |
| CN113741211A (en) * | 2021-05-27 | 2021-12-03 | 北京交通大学 | Optimization method for integrated optimization matching of EGR system and supercharging system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114357646A (en) | 2022-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100516484C (en) | Variable compression ratio internal combustion engine | |
| JP2009007934A (en) | Device and method for controlling internal combustion engine | |
| CN110543715B (en) | Two-stage supercharging system matching method based on simulation calculation | |
| Liu et al. | Experimental study on thermal balance of regulated two-stage turbocharged diesel engine at variable altitudes | |
| CN113738519A (en) | Diesel engine variable altitude self-adaptive energy regulation and control method | |
| Al-Hasan et al. | Charging technologies for CO 2 optimization by millerization | |
| JP2005325813A (en) | Controller for premixed compression self-ignition type internal combustion engine | |
| CN114357646B (en) | Optimal compression and expansion depth matching method for all working conditions of turbocharged engine | |
| Aghaali et al. | Demonstration of air-fuel ratio role in one-stage turbocompound diesel engines | |
| Helmantel et al. | The new volvo mild hybrid miller engine | |
| JP2007321684A (en) | Control device for internal combustion engine | |
| CN114510825A (en) | Optimal phase difference obtaining method and system for opposed-piston efficient engine | |
| Dreisbach et al. | 50% Efficiency on a Combustion Engine-Status and Measurement Results | |
| Watson | Eliminating rating effects on turbocharged diesel response | |
| Nuccio et al. | Development through simulation of a turbocharged 2-stroke GDI engine focused on a range-extender application | |
| CN114738109B (en) | Matching method for key parameters of two-stage turbocharged internal combustion engine | |
| Fujimoto et al. | Present and prospective technologies of rotary engine | |
| Ericsson et al. | Optimizing the transient of an SI-engine equipped with variable cam timing and variable turbine | |
| Wolany et al. | Investigation of the Gas Exchange (Scavenging) on a Single-Scroll Turbocharged Four Cylinder GDI Engine | |
| Beak et al. | Study on the performance factors of two stage turbo-charging system and maximization of the Miller cycle | |
| CN117252041B (en) | Optimal selection method of cylinder diameter size of ultra-high-strength power generation diesel engine | |
| Aghaali et al. | The exhaust energy utilization of a turbocompound engine combined with divided exhaust period | |
| CN112282943B (en) | Effective thermal efficiency-based compression ratio control method for quality-adjusted engine | |
| Fort et al. | Evaluation of positive-displacement supercharging and waste heat recovery for an LHR diesel | |
| Zander | Simulation Study of a Turbocharged Two-Stroke Single Cylinder 425cc SI Engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |